Taws Inhibit Control; Taws Self-Test; Degraded Or No Taws Conditions - BENDIXKing AeroNav 910 Pilot's Manual

AeroNav 900/880 Series Pilot's Guide

TAWS INHIBIT CONTROL

The FLTA and PDA functions of TAWS (visual and aural) can be
inhibited via pilot control. This comes in handy in some scenarios
like VFR flight in an area of significant terrain, VFR low altitude flight
and airfields that are not in the nav database or designated as a user
waypoint airport.
The manual inhibit control is the FLTA On/Off selection in the User
Options page. This on/off control applies to FLTA and PDA
simultaneously.
An alternative means to inhibit the TAWS FLTA and PDA functions is
via an external switch that can be optionally installed somewhere in
the cockpit.

TAWS SELF-TEST

TAWS Self-test is conducted automatically at power up. A passing
self-test will produce the aural "TAWS System Test, OK" and a failed
self-test will play "TAWS System Failure."

DEGRADED OR NO TAWS CONDITIONS

TAWS is degraded or not available under the following conditions:

GPS is unavailable or in Dead Reckoning mode
89000039-010
Rev 1 May 2019 Map Subsystem 4-43